Stove



May 18 1926.

I 5. BOAL ET AL STOVE Filed Jan. 21,-1924 INVENToR-S/ .J w. mwa/M? ATTORNEYS.

Patented May 18, 1926.

naar rrr;

hantai@ STANHOPE BOAL, WLLIAIVI SHERMAN ROSS, AIU) JOHN DHA/VORTEX, OFPIQ'U'A, OHIO,

ASSGNORS TO THE FAVORIETE STOVE 6v RANGE COMPANY, OF IQUA, OHIO, .A COR-PORATION 0F OHIO.

srovn.

Application filed January 21, 1924. ASerial No. 687,415.

Our invention relates to stoves and in particular to a control forstoves.

It is the object oiour invention to provide a unitary control tor theburners and damper oi' a stove, so that they be regu latedsimultaneously through a singleagency. It is our object to regulate oneor a plurality of burners. i

It is a Jfurther object of our invention to provide means for indicatingthe position of the burner control and damper control, so that theoperator can set such controls at the exact point desired.

It is the object or our invention to prevent the damper being closedwhile the burners are operating. v

It is a Jfurther object to provide such a single unitary control fordamper and burners, which may be operated from a point closely adjacentthe user without the necessity of reaching over the stove to control thedamper. It is a further object to provide such apparatus Vin connectionwith an'insulated oven, which will retain the heat therein for anappreciable period after the burners and damper are simultaneouslyclosed by the unitary control.

Referring to the drawings:

Figure 1 is a plan view of a stove embodying our invention with thestove pipe in section and the oven partially cut away to show one of theburners and to show the insulating construction or" the walls of theoven.

Figure 2 is a section on the line 2 2 of Figure 1, looking in thedirection of the arrow Lshowing in end elevation the unitary burnercontrol.

Figure 3 is a detailed plan view with the indicator plate removed',showing the unitary control and the Bowden wire control to the damper.

Figure 4 is a perspective showing the Bowden wire control connected tothe damper and to the unitary control.

vReferring to the drawings in detail:

1 is the top of an oven, 2 is a side wall and 3 indicates the rear wallwhich is also Jformed into a splash plate 4.

The oven consists of an outer wall 5 and an inner wall 6, in which isplaced some insulating material 7. The door 8 is also so insulated. Thisgives the oven substantially sired character, the details of which fornino part'ot this invention. These burners are designated 9. Each burneris connected with a valve 10, having a burner handle 11. The valves areconnected to the gas supply pipe 12' The special handles 11 of theburners are linked together by a control link 13, which is pivoted totheni as at 14. To this link 13 is pivoted a master handle 15 whichoperates the control link and the respective handles pivoted thereto,which control one or more burners. In the form ot our invention shownthe handle of one of the burners is integrally connected to the mastercontrol handle.

Mounted on this control link is an upwardly projecting pin 16 having asharp edge 17. This pin travels in a slot 18 of an indicator plate 19projecting from the front wall of the combustion chamber over the valvemechanism.' The operator can judge of the position of the master controlhandle of the damper and oi the burner controls by the position of theindicating pin with respect `to the indications formed on the tace ofthe indicator plate adjacent to the slot 18. The plate 19 not onlyserves to provide indicating means and to protect the valve mechanism,but also serves to guard the operator against ilarebacks in the burners.

An ear 2O is formed on one side of the master handle for attachmentthereto oit a wire 21, which is a part of a Bowden wire controlconnected to the damper. This wire travels in a guide casing 22 which isattached to the stove by clips 28.

The remote end of this wire 21 is connected to a damper crank 24. Thiscrank is provided with a shaft 25 projecting into thek stove pipe 26 andcarrying the damper 27.

rlhus, when the master handle is moved to the right so that the pin 16is adjacent the word Ofi, the burner handles 11 are turned to close oitthe gas and the damper is closed by the wire 21. When the handle ismoved to the lett, the gas is turned on and the damper is simultaneouslyopened until the pin 16 stands at the indication half-on, or ull-on. Thesharp edge of the pin 17 enables the operator to set the apparatus atthe exact point desired.

The indicator plate is detachable so that the controls can be gotten atquickly. It prevents7 however7 any ordinary tampering with the control,so that it is impossible to close the damper with the gas on whichtrequently results in the flame being extinguished, due to a lack otoxygen and the consequent accumulation of gas in dangerous quantities inthe. oven.

By our arrangement it is also possible to adjust the damper to the exactamount necessary to furnish a requisite draft for the particular size offlame desired. This is adjusted at the factory, so that the operatorcannot use her own judgment as to the damper and its relation to thesize of the Hame. The parts are adjusted to give maximum results at thefactory.

In cooking with our invention, very little heat is necessary due to theinsulated character of the oven, which prevents heat radiation. Theregulation of the damper prerents unnecessary draft which would alsotend to cool the oyen.

In practice, the gas is turned on sufficiently long for any roasting orbaking to begin a'tter the article has been placed in the oven. The gasis then turned oli and the damper simultaneously closed. The roasting orbaking process will continue thereafter for about one and one-halthours, because the imprisoned heat in the oven continues the cookingafter the gas is out.

lVe desire to comprehend within our in vention such modifications as maybe necessary to adapt it to varying conditions.

Having thus fully described our invention7 what we claim as new anddesire to secure by Letters Patent, is:

In a stove construction, the combination with a combustion chamberhaving an exhaust flue leading therefrom7 olf a rotatable damper mountedin said flue, a guard plate projecting 'from the front wall ot thecombustion chamber, a plurality ot burners mounted in the combustionchamber and eX- tending through the ifront wall thereot' beneath theguard plate, a fuel-supply pipe communicating with the burners, valvesbeneath the guard plate controlling the communications between thesupply-pipe and the burners with each ralye having an angularlydisplaeeable actuating arm and one et the arms extending beyond theguard plate to form an operating handle, a link counecting the Valvearms and provided with a pin movable in a lslot in the guard plate toindicate the movement ot the valves, and means connecting the operatinghandle with the damper to turn the latter with the actuation ot' thevalves.

In testimony whereof, we aliix our signatures.

STANHOPE BOAL. VILLIAM SHERMAN ROSS. JOHN DILVORTH.

